Mia is 11 years old when she develops an extraordinary relationship with Charlie, a young white lion born in Mia's parents farm, in South Africa. During three years, they will grow up together and live a beautiful friendship. When Mia reaches the age of 14 and that Charlie has become a magnificent adult lion, she discovers the unbearable truth: her father has decided to sell the lion to trophy hunters. Desperate, Mia has no other choice than to escape with Charlie in order to rescue him.